mirror of
git://git.sv.gnu.org/autoconf
synced 2024-11-21 01:01:48 +08:00
214 lines
6.0 KiB
Bash
214 lines
6.0 KiB
Bash
#!/bin/sh
|
|
# autoheader -- create `config.h.in' from `configure.in'
|
|
# Copyright (C) 1992, 1993 Free Software Foundation, Inc.
|
|
|
|
# This program is free software; you can redistribute it and/or modify
|
|
# it under the terms of the GNU General Public License as published by
|
|
# the Free Software Foundation; either version 2, or (at your option)
|
|
# any later version.
|
|
|
|
# This program is distributed in the hope that it will be useful,
|
|
# but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
# GNU General Public License for more details.
|
|
|
|
# You should have received a copy of the GNU General Public License
|
|
# along with this program; if not, write to the Free Software
|
|
# Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
|
|
|
|
# Written by Roland McGrath.
|
|
|
|
# If given no args, create `config.h.in' from template file `configure.in'.
|
|
# With one arg, create a header file on standard output from
|
|
# the given template file.
|
|
|
|
usage="Usage: autoheader [-h] [--help] [-m dir] [--macrodir=dir]
|
|
[-v] [--version] [template-file]"
|
|
|
|
# NLS nuisances.
|
|
# These must not be set unconditionally because not all systems understand
|
|
# e.g. LANG=C (notably SCO).
|
|
if test "${LC_ALL+set}" = 'set' ; then LC_ALL=C; export LC_ALL; fi
|
|
if test "${LANG+set}" = 'set' ; then LANG=C; export LANG; fi
|
|
|
|
test -z "${AC_MACRODIR}" && AC_MACRODIR=@datadir@
|
|
test -z "${M4}" && M4=@M4@
|
|
|
|
print_version=""
|
|
while test $# -gt 0 ; do
|
|
case "z${1}" in
|
|
z-h | z--help | z--h* )
|
|
echo "${usage}"; exit 0 ;;
|
|
z--macrodir=* | z--m*=* )
|
|
AC_MACRODIR="`echo \"${1}\" | sed -e 's/^[^=]*=//'`"
|
|
shift ;;
|
|
z-m | z--macrodir | z--m* )
|
|
shift
|
|
test $# -eq 0 && { echo "${usage}" 1>&2; exit 1; }
|
|
AC_MACRODIR="${1}"
|
|
shift ;;
|
|
z-v | z--version | z--v* )
|
|
print_version="-DAC_PRINT_VERSION"
|
|
shift ;;
|
|
z-- ) # Stop option processing
|
|
shift; break ;;
|
|
z- ) # Use stdin as input.
|
|
break ;;
|
|
z-* )
|
|
echo "${usage}" 1>&2; exit 1 ;;
|
|
* )
|
|
break ;;
|
|
esac
|
|
done
|
|
|
|
TEMPLATES="${AC_MACRODIR}/acconfig.h"
|
|
test -r acconfig.h && TEMPLATES="${TEMPLATES} acconfig.h"
|
|
MACROFILES="${AC_MACRODIR}/acgeneral.m4 ${AC_MACRODIR}/acspecific.m4"
|
|
test -r ${AC_MACRODIR}/aclocal.m4 \
|
|
&& MACROFILES="${MACROFILES} ${AC_MACRODIR}/aclocal.m4"
|
|
test -r aclocal.m4 && MACROFILES="${MACROFILES} aclocal.m4"
|
|
MACROFILES="${print_version} ${MACROFILES}"
|
|
|
|
case $# in
|
|
0) if test -n "$print_version"
|
|
then infile=/dev/null
|
|
else infile=configure.in; fi ;;
|
|
1) infile=$1 ;;
|
|
*) echo "$usage" >&2; exit 1 ;;
|
|
esac
|
|
|
|
# These are the alternate definitions of the acgeneral.m4 macros we want to
|
|
# redefine. They produce strings in the output marked with "@@@" so we can
|
|
# easily extract the information we want. The `#' at the end of the first
|
|
# line of each definition seems to be necessary to prevent m4 from eating
|
|
# the newline, which makes the @@@ not always be at the beginning of a line.
|
|
frob='define([AC_DEFINE],[#
|
|
@@@syms="$syms $1"@@@
|
|
])dnl
|
|
define([AC_HAVE_FUNCS],[#
|
|
@@@funcs="$funcs $1"@@@
|
|
])dnl
|
|
define([AC_HAVE_HEADERS],[#
|
|
@@@headers="$headers $1"@@@
|
|
])dnl
|
|
define([AC_CONFIG_HEADER],[#
|
|
@@@config_h=$1@@@
|
|
])dnl
|
|
define([AC_HAVE_LIBRARY], [#
|
|
changequote(/,/)dnl
|
|
define(/libname/, dnl
|
|
patsubst(patsubst($1, /lib\([^\.]*\)\.a/, /\1/), /-l/, //))dnl
|
|
changequote([,])dnl
|
|
@@@libs="$libs libname"@@@
|
|
# If it was found, we do:
|
|
$2
|
|
# If it was not found, we do:
|
|
$3
|
|
])dnl
|
|
'
|
|
|
|
config_h=config.h
|
|
syms=
|
|
funcs=
|
|
headers=
|
|
libs=
|
|
|
|
# We extract assignments of SYMS, FUNCS, HEADERS, and LIBS from the
|
|
# modified autoconf processing of the input file. The sed hair is
|
|
# necessary to win for multi-line macro invocations.
|
|
eval "`echo \"$frob\" \
|
|
| $M4 $MACROFILES - $infile \
|
|
| sed -n -e '
|
|
: again
|
|
/^@@@.*@@@$/s/^@@@\(.*\)@@@$/\1/p
|
|
/^@@@/{
|
|
s/^@@@//p
|
|
n
|
|
s/^/@@@/
|
|
b again
|
|
}'`"
|
|
|
|
test -n "$print_version" && exit 0
|
|
|
|
# Make SYMS newline-separated rather than blank-separated, and remove dups.
|
|
syms="`for sym in $syms; do echo $sym; done | sort | uniq`"
|
|
|
|
if test $# -eq 0; then
|
|
tmpout=autoh$$
|
|
trap "rm -f $tmpout; exit 1" 1 3 15
|
|
exec > $tmpout
|
|
fi
|
|
|
|
# Don't write "do not edit" -- it will get copied into the
|
|
# config.h, which it's ok to edit.
|
|
echo "/* ${config_h}.in. Generated automatically from $infile by autoheader. */"
|
|
|
|
# This puts each paragraph on its own line, separated by @s.
|
|
if test -n "$syms"; then
|
|
# Make sure the boundary of template files is also the boundary
|
|
# of the paragraph. Extra newlines don't hurt since they will
|
|
# be removed.
|
|
for t in $TEMPLATES; do cat $t; echo; echo; done |
|
|
# The sed script is suboptimal because it has to take care of
|
|
# some broken seds (e.g. AIX) that remove '\n' from the
|
|
# pattern/hold space if the line is empty. (junio@twinsun.com).
|
|
sed -n -e '
|
|
/^[ ]*$/{
|
|
x
|
|
s/\n/@/g
|
|
p
|
|
s/.*/@/
|
|
x
|
|
}
|
|
H' | sed -e 's/@@*/@/g' |
|
|
# Select each paragraph that refers to a symbol we picked out above.
|
|
fgrep "$syms" |
|
|
tr @ \\012
|
|
fi
|
|
|
|
for func in `for x in $funcs; do echo $x; done | sort | uniq`; do
|
|
sym="`echo ${func} | sed 's/[^a-zA-Z0-9_]/_/g' | tr '[a-z]' '[A-Z]'`"
|
|
echo "
|
|
/* Define if you have ${func}. */
|
|
#undef HAVE_${sym}"
|
|
done
|
|
|
|
for header in `for x in $headers; do echo $x; done | sort | uniq`; do
|
|
sym="`echo ${header} | sed 's/[^a-zA-Z0-9_]/_/g' | tr '[a-z]' '[A-Z]'`"
|
|
echo "
|
|
/* Define if you have the <${header}> header file. */
|
|
#undef HAVE_${sym}"
|
|
done
|
|
|
|
for lib in `for x in $libs; do echo $x; done | sort | uniq`; do
|
|
sym="`echo ${lib} | sed 's/[^a-zA-Z0-9_]/_/g' | tr '[a-z]' '[A-Z]'`"
|
|
echo "
|
|
/* Define if you have the ${lib} library (-l${lib}). */
|
|
#undef HAVE_${sym}"
|
|
done
|
|
|
|
status=0
|
|
|
|
for sym in $syms; do
|
|
if fgrep $sym $TEMPLATES >/dev/null; then
|
|
: # All is well.
|
|
else
|
|
echo "$0: Symbol \`${sym}' is not covered by $TEMPLATES" >&2
|
|
status=1
|
|
fi
|
|
done
|
|
|
|
if test $# -eq 0; then
|
|
if test $status -eq 0; then
|
|
if cmp -s $tmpout ${config_h}.in; then
|
|
rm -f $tmpout
|
|
else
|
|
mv -f $tmpout ${config_h}.in
|
|
fi
|
|
else
|
|
rm -f $tmpout
|
|
fi
|
|
fi
|
|
|
|
exit $status
|